3. has read
4.have know
5.haven't seen
6.haven't worked
7.have bought
8.haven't planted
9.has you been
10.has written
11.Are you
12.Hasn't started
13.Has he spoken
14.hasn't had
15.has just caught
16.has already invited
17.makes
18.lost
19.have just cleaned
20,have given up
Bài 9 :
1/ I have had this computer for three years.
2/ They have lived in Da Lat since last year.
3/ She had been happy since she had the mobile phone.
4/ We have learnt French for a month.
5/ She has worked in this school since 2012.
6/ I have used computers for 5 years.
7/ The washing machine has stopped working since this month.
8/ They have known her for a long time.
9/ He has read this book since 9 o'clock.
